baber/WOPTO huggingface dataset:
Patent GB-130585-A (GB)
Title: Improvements in Sound Recorders and Reproducers.
Inventor: STEIGER EUGEN
IPC: G11B3/00
Filed: 1919-06-19
Abstract: 130,585. Steiger, E. Aug. 1, 1918, [Convention date]. Ribbon records; ribbon machines. - A sound record is formed on a structureless thread 1, for example of cast or pressed cellulose, which is supported between two spools 2, 3 on a rod 4 and is engaged by a chisel-shaped stylus 8 connected to a diaphragm 5. The apparatus is used for recording or reproducing.
Patent GB-637960-A (GB)
Title: Regulation arrangement in burners for liquid fuel
IPC: F23D11/28
Filed: 1948-06-08
Abstract: 637,960. Spray burners. HANSEN, K. E. June 8, 1948, No. 15489. Convention date, June 18, 1947. [Class 75 (i)] A "spill " type burner having a vortex chamber 4 with tangential admission channels 9 and a single central unrestricted outlet  orifice, is provided with return-oil channels 10 leading to a return pipe and a regulating member 3 which effects simultaneously the stepped opening and closing (and vice versa) respectively of the two sets of channels 9, 10. As shown a burner casing 1 houses a flanged liner 2 which forms, with the walls of the casing 1, an annular oil - supply chamber 8, and has a central bore one end of which forms the vortex chamber 4. The tangential channels 9 and the channels 10 are formed respectively in the bottom and top halves of the liner 2, the upper end of which opens into a return-oil chamber 11 leading to the return pipe. An axially movable piston forming the regulating member 3 slides within the liner bore and serves both to seal the vortex chamber 4 and to regulate the amounts of oil supplied thereto and to the return pipe. The member 3 may be rotatable to effect regulation, in which case it is provided with a helical cut-off surface, or alternatively a tubular slide valve may enclose the vortex chamber which latter must be sealed from the return oil chamber.
Patent GB-372572-A (GB)
Title: Improved process for obtaining pure aluminium-alkali double fluorides
IPC: C01F7/54
Filed: 1931-05-27
Abstract: Raw materials containing alumina and iron compounds, such as bauxite, are dissolved in hydrofluoric acid, and alkali-aluminium fluoride is precipitated, and subsequently separated, from the solution by the addition of an alkali salt of which the acid radicle forms a soluble iron salt.  Sodium chloride and sulphate are specified.  When silica is present in the raw materials, sufficient hydrofluoric acid is used to form hydrofluosilicic acid, which is separated from the solution, prior to the precipitation of the double fluoride, as alkali silicofluoride by the addition of an alkali salt, such as sodium or potassium chloride.
Patent GB-216700-A (GB)
Title: Sail attachments for roller and other spars
IPC: B63H9/08
Filed: 1923-06-15
Abstract: 216,700. Walker, A. C. June 15, 1923. Sails.-A sail hank designed to be employed in conjunction with roller reefing gear comprises a flat hank A lashed to an eyelet E in the sail D and provided with lateral grooves which engage with inturned lips on a channel member B recessed into the spar C. This construction enables the sail to lie close to the spar and permits the sail to be readily reefed or unreefed. Specifications 14887/87 and 9138/95 are referred to.
Patent GB-680215-A (GB)
Title: Improvements in or relating to hydraulic valves
Inventor: MILLBANK LEONARD GEORGE
IPC: F15B13/04
Filed: 1949-06-10
Abstract: 680,215. Change-over valves. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 1, 1950 [June 10, 1949], No. 15566/49. Class 135. A hydraulic change-over valve of the piston type includes a hydraulic ram for returning the valve piston to its central or inoperative position when valve control means is inoperative. Thus, a changeover valve for a reversible hydraulic motor comprises a body having a bore 4 for the piston 4a the movement of which to the right or the left to control the flow of pressure liquid from an inlet port 9 to either of two ports 12, 13 is effected by hydraulic pressure on the outer end of either of the lands 5, 8. The return of the piston to its initial position is effected by the rams 37, 38 which work in bores at the ends of the piston. The supply of pressure liquid from ducts 14 communicating with the inlet port 9 to the ends of the lands 5, 8 is controlled by pilot valves 20, 21 actuated by electromagnets 2, 3 respectively. The inner ends of the rams are permanently exposed to pressure liquid through ducts 35, 36, and the spaces between the lands 5, 6 and 7, 8 are open to exhaust through ports 10, 11 in the body. If it is desired to supply pressure liquid to the port 12, the electromagnet 3 is engaged to move the pilot valve 21 to the right against a loading spring so that the liquid flows via a recess 32 in the valve 21 to the right of the land 8. The left side of the land 5 at the opposite end of the piston 4a is meanwhile open to exhaust through the pilot valve 20, the duct 26 in the body and the exhaust port 10. The movement of the piston to the left opens the port 12 to pressure liquid and the port 13 to exhaust via the port 11. At the same time the outer end of the squared shank 39 of the ram 37 buts against a plug 27 in the body. De-energization of the electromagnet 3 results in the pilot valve 21 returning to its initial position under the action of the spring and thus opening the space to the right of the land 8 to exhaust via the duct 26 and the port 11. Meanwhile, the hydraulic pressure on the inner end of the ram 38 and the reaction on the piston of the hydraulic thrust against the inner end of the ram 37 returns the piston to its initial position. The speed of the motor may be controlled by restricting the flow thereto in which case the valve body is provided with an extension 1a having a bore 60 for a spring- loaded piston valve 61, and motor ports 69, 70. The piston valve may be operated manually or, alternatively, automatically by a cam driven through reduction gearing from the motor shaft and coacting with one end of a pivoted link the opposite end of which is connected to the piston valve spindle.
Patent GB-960577-A (GB)
Title: Improvements to condensation traps for diffusion pumps
IPC: F04F9/06
Filed: 1963-04-19
Abstract: 960,577. Making heat exchangers. EUROPEAN ATOMIC ENERGY COMMUNITY. April 19, 1963 [April 20, 1962], No. 15570/63. Heading B3A. [Also in Division F1] In a method of making a condensation trap or baffle for a diffuser pump and comprising coolant pipes 5, 6 welded to frusto-conical baffle plates 2, 3, a coolant pipe 5, 6 is bent to a non- closed arc, forced or sprung on to the conical surface of a baffle plate 2, 3 and continuously welded thereto. The plates and pipes are of stainless steel.
Patent GB-576057-A (GB)
Title: Improvements in dynamo-electric torque amplifiers
IPC: H02K49/08
Filed: 1943-09-23
Abstract: 576,057. Oscillating motors. TIMBERLAKE, E. J. Sept. 23, 1943, No. 15592. [Class 35] In a torque amplifier displacement of the brush gear D on the commutator causes the field magnet of a fixed armature F to move into a new position of equilibrium, the armature being the fixed member and energized with A.C. or D.C.
Patent GB-786260-A (GB)
Title: Improvements in or relating to sheet metal structures
IPC: E04C2/34
Filed: 1956-05-18
Abstract: 786,260. Vehicle bodies. BAYERISCHE MOTOREN WERKE AKT.-GES. May 18, 1956 [May 20, 1955], No. 15616/56. Class 108(1) Two panels 1, 2 particularly for a vehicle floor are secured in spaced relationship by cup-shaped members 3 welded to the panels. The panel 2 is preferably provided with an inturned flange 6 corresponding with that on the cup member 3. The cup is filled with resilient sound deadening material.
Patent GB-506782-A (GB)
Title: Improvements in or relating to storage-tanks
IPC: B65D88/76
Filed: 1938-05-25
Abstract: 506,782. Tanks. LAITHWAITE, J. H., and NEILL & SON (ST. HELENS), Ltd., W. May 25, 1938, No. 15640. [Class 69 (i)] In a substantially straight-sided underground tank for storing oil, petrol or other material the walls are formed of a number of curved plates 21 so shaped that each subtends an angle of between 20 and 40‹ at its centre of curvature, joists 18 supporting the plates at their joints. The roof is preferably constructed of similar curved plates 14. The tank shown comprises a concrete base 10 covered with steel plates welded together, to which are welded the bases 12 of columns 11 which support horizontal joists 13 to which the roof plates 14 are welded. The roof plates are provided with stiffeners 15 and braces 16. The marginal portions 17 of the roof are flat and are supported on joists 20 extending between the joists 13 and the vertical joists 18. The latter are provided with an outer flange 23, Fig. 5, having inclined inner faces against which the ends of the wall plates 21 seat and to which they are welded. The wall plates are strengthened by stringers 22. The corners of the tank are formed by plates 24 of smaller radius of curvature than the plates 21, and are stiffened by gussets 26 and stringers 25. The plates 14 and 21 may have a span of about one-half their radius of curvature. Specification 18242/01, [Class 69], is referred to.
Patent GB-157033-A (GB)
Title: Improvements in and relating to mechanical bottle stoppers with jointed levers
IPC: B65D45/06
Filed: 1920-06-09
Abstract: 157,033. Schlegel, W., and Becker, N. June 9, 1920. Stoppers, bail. - In a mechanical bottle stopper of the type comprising levers and compression springs, the stopper b is held by a divided wire loop of which the sections d, d<1> interengage by means of eyes f having between them compression springs g to force the stopper b into the bottle. The springs g may .be removably mounted.
Patent GB-455102-A (GB)
Title: Improvements relating to compressors for air or other gases
IPC: F04B49/03
Filed: 1935-05-29
Abstract: 455,102. Air compressors. RIDLEY, M. W. RIDLEY, VISCOUNT, Blagdon, Seaton Burn, Northumberland. May 29, 1935, No. 15652. [Class 8 (i)] [See also Group XXIX] To prevent jamming, the stem of a relief valve 7 slides without rotation in a rotary guide 10 formed with inlet and exhaust ports 11, 12 communicating with the atmosphere and with a screwed plug leading to a storage chamber. At a predetermined pressure the compressed air passes through passages 14 to lift the valve from its bevel seat on the end of a sleeve 9 enclosing the valve stem and allow the air to pass through the hollow stem to the atmospheric port 11. The valve guide is rotated from the crankshaft by gear wheels 23 which also act as oil pumps taking oil from the crank case and delivering it through passages to the crankshaft and the relief valve. The valve guide may have a reciprocating or other movement in place of rotation.
Patent GB-1099272-A (GB)
Title: Passenger gangway with levelling system
IPC: B64F1/305
Filed: 1965-04-13
Abstract: 1,099,272. Self-levelling gangways. WOLLARD AIRCRAFT SERVICE EQUIPMENT Inc. April 13, 1965 [April 29, 1965], No. 15664/65. Heading B7J. The gangway 1 comprises, an inner or terminal portion 3, a portion 5 rotatably mounting a vestibule 7 and mounted on hangers 15, 19 and trolleys 13, 17 so as to move on a rail 11 longitudinally with respect to 3, jacks 21 which may be raised or lowered to tilt the portion 5 about the hanger 15, and a jack 27 which may swing a hood 23 about pivot 25 so that electrical switches 35, 37, 39 actuated by pivoted arms 41, 43, 45, Fig. 2 (not shown), attached to the hood may be operated by pressure of the hood on the vehicle 9 such as an aircraft to raise or lower the portion 5 automatically as the vehicle rises or lowers. The hood also carries bellows 29, flexible curtains 31 and a rubber or plastics bumper 33, all of which parts are non-metallic to prevent earthing the aircraft. Once the gangway has been registered the pivoted arms and switches carried by the hood are operated automatically and sequentially to compensate for the rise and fall of the aircraft, the switches actuating an hydraulic pump and valves, Fig. 5 (not shown), manually operable switches 73, 75 and 77 may be made to raise and lower the gangway and the hood is lowered by switch 81.
Patent GB-807378-A (GB)
Title: Improvements in apparatus for use on lathes for grinding or turning
Inventor: HAUTENNE GEORGES CHARLES ALBER
IPC: B24B5/35
Filed: 1956-05-22
Abstract: 807,378. Attachments for turning. TRUCOT ENGINEERING CO. Ltd. May 21, 1957 [May 22, 1956], No. 15693/56. Class 83 (3). [Also in Group XXIII] An apparatus for use on a lathe for turning a roller D3, such as that used in textile roving and spinning-frames, comprises arms D<SP>2</SP> mounted on a frame A located on the lathe-bed which, in their operative position, hold the roller in contact with a driving-roller D<SP>4</SP> mounted between the lathe head and tail-stocks for frictionally driving the roller D<SP>3</SP> so that its surface may be machined by a turning-tool. The arms D<SP>2</SP> are adjustably secured to a bar D<SP>1</SP> fixed at its ends to levers D mounted on a rod B which is rotatable in bearings a<SP>2</SP> on the frame, and has a handle C secured thereon; a catch c, attached to the handle, engages the frame to retain the arms in their lower, inoperative, position. The roller D<SP>3</SP> is supported by its spindle d<SP>4</SP> on rests d<SP>6</SP> on the arms so that, when the catch c is released, the levers D are upwardly-urged by springs a<SP>3</SP> to cause the roller to engage the roller D4, and the spindle d<SP>4</SP> to engage rollers d<SP>3</SP> on the arms. The turning-tool is then brought into contact with and automatically traversed along the roller D<SP>3</SP> to machine its surface.. A roller without spindle ends may be engaged directly by the rollers d<SP>a</SP>, or a cylinder with bossed ends remain in the rests d<SP>6</SP> of the arms, in which case the rollers-may be dispensed with. An additional guiding-roller may be fitted parallel to the driving-roller D4.
Patent GB-590474-A (GB)
Title: Improvements in wave transmission networks
IPC: H01P1/213
Filed: 1944-08-17
Abstract: 590,474. Impedance networks ; electric resonators. WESTERN ELECTRIC CO., Inc. Aug. 17, 1944, No. 15775. Convention date, May 15, 1943. [Class 40 (iii)] Signals in two different bands of frequency pass from or to a common transmission line 1 to or from two separate transmission lines 2, 3, and are separated or combined by a pair of band-pass filters 8, 9, constructed of sections of transmission line. The filter 9, which passes the band of higher frequency, comprises two short-circuited stubs 17, 18, which are shunt arms anti-resonant at the mid-band frequency, and an intervening length 19, which is equivalent to a low-pass pi section, the whole being equivalent to a band-pass pi section with series inductance and shunt anti-resonant arms, Fig. 2 (not shown). The lengths of the stubs 17, 18 and connecting section 19 are determined from the desired cut-off frequencies to give an impedance match with the outside line 3 at the mid-band frequency. This calculation determines also the characteristic impedance which the connecting section 19 must have, but alternatively, coaxial lines of uniform construction may be used throughout the filter, the two cut-off frequencies being determined in that case with only one degree of freedom. The building-out section 20 is of such a length that at its junction with the line I it presents a high impedance at the mid-band frequency of the pass-band of the lower-frequency filter 8. The stub 13 of the latter is constructed to be anti-resonant at the mid-band frequency of the filter 8, but resonant at that of the filter 9, and the connecting length 15 is a quarter of a wave length at the mid-band frequency of the filter 9, so as to present a high impedance at that frequency to the junction 10. In order that the resonant and anti-resonant frequencies of the stub 13 may be widely spaced, Fig. 4 (not shown), the inner conductor is made in two sections of different diameters, the edge 34 being rounded to prevent corona discharge, and the mid-band frequency of the filter 9 may coincide with the third or a higher resonance of the stub 13. The stub 12 is similar and the intervening length 14 is such that the filter 8, like the filter 9, is equivalent to a band-pass pi section with series inductance and shunt anti-resonant arms, Fig. 3 (not shown). The lengths of the intervening sections are corrected to allow for interruption by the mouths of the stubs. Specification 487,282 is referred to.
Patent GB-1003753-A (GB)
Title: Improvements in or relating to pneumatic tyres for automotive vehicle wheels
IPC: B60B25/12
Filed: 1962-04-26
Abstract: 1,003,753. Pneumatic tyres. PIRELLI S.p.A. April 26, 1962 [May 6, 1961], No. 15909/62. Addition to 907,889. Heading B7C. A pneumatic tyre of the kind described in the parent Specification having unbladed edge portions 2, each bonded to one of two annular metal members 4 together forming a tyresupporting rim member, and in which the carcass plies extend into the bonded edges, is modified in that the carcass is of the radial cord type and comprises a plug of rubberized metal cords bared at their ends 7, or at any other parts of the contacting surfaces of the edge portions 2 and annular metal members 4, so that they may be secured as by soldering directly to the members 4 or to auxiliary metal rings each secured in turn to the members 4.
Patent GB-496928-A (GB)
Title: Improvements in or relating to the recording of sound and like oscillations
IPC: H04R3/04
Filed: 1937-06-22
Abstract: 496,928. Gramophone recording circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 22, 1937, No. 15912/38. Convention date, June 25, 1936. Divided out of 495,124. Drawings to Specification. [Class 40 (iv)] An electromechanical recording instrument having a high natural frequency, e.g. 3000, is shunted by a resistance or a condenser or a resistance and condenser in series to enable it to produce constant-velocity records. Specification 495,124 is referred to.
Patent GB-1261047-A (GB)
Title: Centrifugal pump
IPC: F04D29/50
Filed: 1969-03-26
Abstract: 1,261,047. Centrifugal pumps. SIEMENS A. G. March 26, 1969 [March 26, 1968(2)], No. 15929/69. Heading F1C. In a centrifugal pump an inwardly-extending deflecting tongue 7, Fig. 1, is provided at the cutwater position so that during reverse idle rotation of the impeller 2 and termination of the water supply to the pump, the rotating ring of water remaining in the pump is deflected inwards to cause a port 9 of the ring to overlap the inlet port 4 to remove excess water therethrough when too much is present. Thus any additional water entering the pump at this time, e.g. by leaking through the various clearances, will be removed and the water column 10 in the outlet 3 will remain small thereby avoiding discharge through the outlet. The tongue may be straight, Fig. 3 (not shown), instead of curved as shown. A cavity (12), Figs. 2 and 4 (not shown), may be formed in the peripheral wall of the impeller chamber at a position immediately preceding the deflecting tongue in the direction of reverse rotation.
Patent GB-331653-A (GB)
Title: Improvements in or relating to floatless carburetters for internal combustion engines
IPC: F02M7/18
Filed: 1929-05-23
Abstract: 331,653. Hofmann, H. May 23, 1929. Spray carburettors.-Fuel entering at i is controlled, in its passage to the nozzle, by a valve b mounted directly on the axle of the throttle valve k. The fuel passes through a duct e to a chamber c within the valve, whence it issues through a variable number of orifices d into a recess g and thence through conduit h to the nozzle outlet. The valve b is displaceable axially relatively to the throttle axle, and is forced against its seat by a spring. The spaces c, g are stated to serve as fuel reservoirs. The valve b is located entirely outside the air passage.
Patent GB-860041-A (GB)
Title: Improvements in pulleys
IPC: F16H55/56
Filed: 1958-05-19
Abstract: 860,041. Gearing for stopping machinery; belt gearing. SANDERS, G. W., and SANDERS, A. V. May 8, 1959 [May 19, 1958], No. 16013/58. Classes 80 (1) and 80 (2). A pulley for a V-belt drive which is adapted to be stopped on overload occurring comprises two halves 3, 4 which are held together to engage the belt by spring-loaded balls 8 in radial bores 7 in one half 4 engaging in holes 10 in a hub 1 of the other half 3. On excessive tension of the belt due to overload the halves 3, 4 separate, the balls 8 being forced out of the holes 10 into further axially disposed holes 12, to disengage the belt. A spring 6 is provided to assist this separation. The pulley half 4 must be pushed back against the spring 6 for the balls 8 to re-engage the holes 10 to restore the drive.
Patent GB-136118-A (GB)
Title: Improvements in Steam Traps.
Inventor: WASHINO UHACHI
IPC: F16T1/26
Filed: 1919-06-25
Abstract: 136,118. Washino, U. June 25, 1919. Steam-traps.-The stationary seat of the trap valve of a steam-trap is replaced by sliding member providing a number of seats according to the varying pressure of the steam. The trap valve 1 is mounted on a spindle 12 on the bucket 10, and engages either a fixed seat in a plug 2, as shown in Fig. 2, or a seating in the cored plug 4, as shown in Fig. 1. The plug 4 is moved into or away from the stationary plug 2 by a screwed spindle 5 operating in a gland on top of the trap cover.
Patent GB-1003421-A (GB)
Title: Manufacture of vegetable parchment paper
IPC: D21H/
Filed: 1962-04-26
Abstract: 1,003,421. Treating apparatus; paper-making; paper. UNILEVER Ltd. April 26, 1962 [April 28, 1961],No. 16019/62. Headings D1L,D2A and D2B. Apparatus for parchmentizing paper on one or both sides includes a series of rotary conveyers of which adjacent conveyers are in contact, means for driving the conveyers to convey a paper web substantially without tension and stress and means for applying fluid to the web. The conveyers, at least in part of the apparatus, have each a surface to which the wet amploid surface of the web sticks less than it would to rubber-surfaced conveyers. The conveyers may be cylinders or endless belts, and their surfaces may be of polyethylene, polytetrafluoroethylene or silicone rubber. As shown, a web of 1 from a reel 2 is pressed on to a cylinder 3 by a cylinder 4, and passes successively round the cylinders 3a to 3k, surfaced with polythene. Parchmentizing fluid, e.g. sulphuric acid, is supplied to one or both surfaces of the paper from pools 6 or 9 or both between the cylinders 5 or 7 and 3. The web passes one or two equalizing devices comprising friction cylinders 10 and 10a, rotated at a speed different from that of the cylinder 3, is then washed first by dilute acid from sprays 12 to 12c, then by water from sprays 13- 13e, and is finally dried in the drier 14. Each of the lower rolls, 3, 3b, 3d, 3f, 3h and 3k is rigidly mounted; each of the upper rolls 3a, 3c, 3e, 3g and 3i is mounted in slide supports (not shown) with adjustable pressure springs on each side to make line contact with both the preceding and the following lower cylinder at any desired pressure. Each cylinder has its own individual variable drive. The web treated may be of light weight, e.g. 20-30 grams per square metre. Paper parchmentized on one side by the above method may be coated with a plastics material on the other side, or may be backed with paper, aluminium or plastic foils or may have metals vacuum-deposited on it.